Frequency Agile Bilayer Metamaterials for Radar Cross-Section Reduction

IF 2.2 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2024-09-05 DOI:10.1007/s11664-024-11394-1

Khedidja Bouras, Chaker Mohsen Saleh, Djalaleddine Bensafieddine, Mouloud Bouzouad

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Abstract

Metamaterials (MTMs) are synthetic structures known for their ability to control electromagnetic wave propagation, offering innovative solutions for reducing the radar cross-section (RCS) of objects. This paper proposes an agile bilayer MTM to reduce the RCS. Each layer consists of identical agile MTM unit cells embedded with switches to achieve agility. Depending on the switch state, we can obtain two types of unit cells: connected (ON state) and disconnected (OFF state), which exhibit two different behaviors. The switches are controlled using an external command system. By independently adjusting the switching states (ON/OFF) of the two layers, six agile reflection frequency stop bands are generated, corresponding to the four possible configurations of ON–ON, ON–OFF, OFF–ON, and OFF–OFF, and their reflection and transmission ranges are controlled. This design has the capability to control six distinct frequency bands with a − 1- dBm RCS reduction, comprising two bands within the Ku-band (12–18 GHz) and four within the Ka-band (25–40 GHz).

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降低雷达截面的频率敏捷双层超材料

超材料（MTM）是一种合成结构，以其控制电磁波传播的能力而著称，为减小物体的雷达截面（RCS）提供了创新解决方案。本文提出了一种可降低 RCS 的敏捷双层 MTM。每一层都由嵌入开关的相同敏捷 MTM 单元组成，以实现敏捷性。根据开关状态，我们可以获得两种类型的单元：连接（ON 状态）和断开（OFF 状态），从而表现出两种不同的行为。开关由外部指令系统控制。通过独立调整两层的开关状态（ON/OFF），可产生六个敏捷反射频率阻带，分别对应 ON-ON、ON-OFF、OFF-ON 和 OFF-OFF 四种可能的配置，并控制其反射和传输范围。这种设计能够控制六个不同的频段，并将 RCS 降低-1-dBm，包括 Ku 波段（12-18 GHz）内的两个频段和 Ka 波段（25-40 GHz）内的四个频段。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.